diff --git a/src/server/scripts/EasternKingdoms/Deadmines/deadmines.cpp b/src/server/scripts/EasternKingdoms/Deadmines/deadmines.cpp
index f54cc73102b..db3b01c0b2f 100644
--- a/src/server/scripts/EasternKingdoms/Deadmines/deadmines.cpp
+++ b/src/server/scripts/EasternKingdoms/Deadmines/deadmines.cpp
@@ -53,7 +53,7 @@ struct npc_deadmines_defias_watcher : public ScriptedAI
 
     void DamageTaken(Unit* attacker, uint32& damage) override
     {
-        if (!_isOnFire, me->HealthBelowPctDamaged(30, damage))
+        if (!_isOnFire && me->HealthBelowPctDamaged(30, damage))
         {
             me->DeleteThreatList();
             me->CombatStop();